Speed-regulator for oil-engines.



'PATENTED APR. 14, 1903.

W. A. WHITING. SPEED REGULATOR FOR OIL ENGINES.

APPLICATION FILED FEB. 17, 1902.

6-SHEETSSHEET 1.

N0 MODEL.

Ehwzntoz wihwoozo PATENTED APR. 14, 1903.

W. A. WHITING. SPEED REGULATOR FOR OIL ENGINES. I

APPLICATION FILED FEB.17. 190 2.

6 SHEETS-SHEET 2.

N0 MODEL.

No. 725,528. I I 'PATENTED APR. 14, 1903.

y w. A. WHITING.

' SPEED REGULATOR FOR OIL ENGINES.

APPLICATION FILED FEB.17, 19oz. no MODEL.

6 SHBETS-BEBET 3.

Elnuent'oz wan-m I 29" [I a www No. 725,528. PATENTED APR.14,1903 W. A.WHITING.

SPEED REGULATOR FOR OIL ENGINES.

APPLICATION FILED r3117, 1902.

N0 MODEL.

' 5 SHEETS-SHEET 4.

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W. A. \WHITING. SPEED REGULATOR FOR OIL ENGINES. APPLICATION FILLED FEB.17, 1902. N0 MODEL.

5 SHEETS-SHEET 5.

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UNITED S ATES ATENT OFFICE.

WILLIAM A. WHI'IING, OF BURLINGTON, VERMONT.

SPEED-REGULATOR FOR OIL-ENGINES.

SPECIFICATION forming part of Letters Patent No. 725,528, dated April14, 1903.

Application filed February 17, 1902. Serial No. 94,516. (No model.)

To all whom, it may concern.-

lington, in the county of Chittenden and State of Vermont, have inventednew and useful Improvements in Speed-Regulators for.Oil-

Engines, of which the following is a specification.

My invention relates to improvements in speed-regulators for oil-enginesof the type in which the oil is injected into an ignitionchambercommunicating directly with the engine cylinder, the ignition -chamberbeing kept hot enough to ignite the-mixture of compressed air orexpansion medium and oil-vapor, such ignition taking place immediatelyafter the injection of oil and at or near the end of thecompression'stroke-of the engine.

The objectof my invention is to provide means to regulate the speed ofthe oil-engine.

by introducing the charge at different stages of the compression-stroke,and thus increasing or decreasing the speed, as the case may be. v

Another object of my invention is to provide means for varying thequantity of oil or mixture of vapor and air injected into theignition-chamber, thus causing perfect combustion under allcircumstances Still another object of my invention is to provide asimple, cheap, and effective device in which the means for varying thetime of the injection and ignition also controls the means for varyingthequantity of oil-vapor injected into the ignition-chamber.

In the accompanying drawings, Figure l is an end view of my device,showinga portion of the oil-plunger. .Fig. 2 is a side view of the same,partly in section, Fig. 3 is a horizontal longitudinal sectional view.Fig. tis a transverse sectional view taken on line 4 4:, Fig. 2. Fig. 5is a transverse'sectional view on line 5 5 of Fig. 2. 1 Fig. dis asideview of a modification. tional view taken on line 7 7, Fig. 6. Fig.5} isa si'deview of another modification. Fig. 9 is an enlarged sectionalview of the camengaging roller shown in Fig. 8. Fig. 10 is a side viewof a vertically-arranged engine, showing my device in operativeconnection therewith.

Referring now to the drawings, a represents Fig. 7 .is a transversesec-,

a hollow shaft which is geared to the powershaft 5 of the engine throughthe medium of the gears l, 2, 3, and 4 and is adapted to make onerevolution to two of the power-shaft, said I shaft being revolublymounted in any desired manner.

V is a casing or sleeve which is loosely mounted on the shaft and isscrew-threaded, and on said sleeve is a collar S, which is adapted to berevolved thereon and is internally screw-threaded, whereby the sleeve Vis moved endwise on the shaft or, and said collar is adapted to berotated by hand or by a chain passing over the sprocket s. The saidcollar S is rotatably mounted within a standard 0, but is held againstan endwise movement, and projecting from said standard below the shaftis a horizontal arm or stud M, extendingparallel the shaft, while .thesleeve V carries a downwardly-extending arm K, which is adapted toreceive the arm or stud M, by means of which the sleeve is preventedfrom being rotated by the shaft a.

The outer end of the hollow shaft a is provided with a sleeve Q which isloosely mounted thereon, carrying near one end the cam Q, and beneathsaid shaft is a curved arm Q, which has its outer end pivoted at thepoint Q and intermediate the said pivotal point'and the outer free endisa roller R, which isadapted to rotate and is in the path of the cam Q,carried by the shaft or. The said armand the'roller carried thereby arenormally held up in engagement with the cam Q by a coil-spring q. Theouter end of said arm Q is curved upward, as'shown at Q the extremeouter end carrying a verticallyarrange'd rod T, which is verticallyadjustable therein by means of thescreW-nut N. The lower end of said rodTis V-shaped and is indirectly adapted to engage the upper end of theoil or vapor plunger 0. The lower end of said plunger 0 works inan"oil-pu mp cylinder ti, which has an oil-supply pipe 7 in communicationtherewith, and extending from said oil-pump cylinder to the upper end ofthe engine-cylinder 8 is a pipe 9, through which the charge is fed tothe engine-cylinder 8 when.

the plunger 0 is forced downwardly. The upward movement of the plungerdraws a charge of oil to the pump-cylinder 6 through the supply-pipe 7.

In order to regulate the power and speed of the engine, the time atwhich the explosion takes place in regard to the position of the pistonwithin the cylinder must be changed, and the greatest power is obtainedwhen the piston is at the end of the compression-stroke.

As before stated, the shaft a is hollow or provided with the opening A,and within said opening is a longitudinally-movable rod H, and adjacentthe sleeve V the shaft a is provided with an elongated slot D. The saidrod H adjacent said slot is provided with an outwardly-extending lug-G,and carried by said lug is a block E, which rests within the slot D, anda second block F is also carried by the stud or lug G and is adapted toenter the annular recess Y in the sleeve V. The sleeve being heldstationary and the shaft revolving will allow thesaid block to travelwith the recess Y, and when the sleeve is moved longitudinally upon theshaft the block E is carried forward within the opening D, and the rod His moved within the shaft. The rod H adjacent the other end has a secondstud G, which extends out through an opening D in the shaft a, and thesleeve upon which the cam Q is carried also has an oblique slot B,through which the stud Gr projects, and mounted on said stud and withinthe slot D is a block E, and within the slot B is another block F, whichwill cause a slight rocking of the sleeve carrying the cam when the rodI-I within the shaft is moved longitudinally therein, which willnecessarily cause the cam to strike the roll R sooner or later, as thecase might be, thus causing the plunger 0 to be forced down at adifferent time during the compression-stroke of the englne.

Mounted on the base on which the standard O is mounted is asecondstandard, which has pivoted to its upperend an upwardly-extending arm L,having at its upper end an inwardly-extending lug d, which is adapted toenter the annular recess X, carried by the sleeve V, thus allowing thesleeve to rotate, yet any endwise movement will cause the arm to beswung therewith from its pivoted point. Pivoted to said arm L is ahorizontal bar W, which has its upper face gradually tapered toward itsend, or, in other words, it is wedgeshaped,and has near its lower faceoutwardlyextending flanges w, which are adapted to fit in an opening 0in the upper edge of the plunger 0, whereby it is longitudinally movablethereon, but is prevented from displacement therefrom. By thisconstruction it will be seen that the rod T strikes said bar or wedge Wand forces the plunger downward.

The operation of my device is as follows: The rotation of the collar Smoves the sleeve V longitudinally on the shaft and carries the sleevecarrying the cam Q, which rocks the cam slightly upon the shaft, whichcauses the cam to engage the arm Q at a different time, thus causing thecharge to be injected into the ignition-chamber at a different time inregard to the position of the piston within the cylinder. The arm L,having lugs entering the annular recess X within the collar V, is movedwith the collar,and the wedge-shaped bar W', resting upon the upper endof the plunger and connected with the collar, is also moved therewith,and such movement will cause the rod T to change the downward movementof the plunger, and thus change the quantity of the charge injected intothe ignition-chamber.

Referring now to Figs. 6 and 7, I show a modification for controllingthe time at which the charge is injected, using the same means andprinciple for varying the quantity of the charge. I employ the same armQ, carrying the roller R, and instead of having one cam I employ four orany number, mounted side by side upon a longitudinally-movable sleeve B,which is keyed to the shaft a, so that it rotates therewith, yet isslidable thereon. The end of the sleeve 13 carries an annular groove 0,and the bifurcated arm L also carries lugs Z, entering the said grooveand having the upwardly-extending handle P, by means of which the sleeveis moved upon the shaft, and by so moving the sleeve any of the cams canbe brought so that they will engage the roller B, said cams beingarranged with their striking-surface a little in advance of the oneadjacent thereto, thus changing the time at which the charge isinjected, thus governing the speed of the engine. I employ the sameoil-plunger and the same means for changing the quantity of the charge,which is connected to the bifurcated arm L and is operated thereby.

Referring to Figs. 8 and 9, I show still another modification employingthe same principle of changing the time at which the charge is injectedand at the same time changing the quantity of oil fed to theignition-chamber. In this form I also employ the curved arm upwardlyspring-held against the cam, and the outer end of said arm having thebar for forcing the oil-plunger downward and injecting the oil or vaporinto the ignition-chamber. In this form I provide the arm Q with acurved slot E which is not concentric with the shaft at, and mounted insaid slot are two blocks a, and passing through said blocks is the bolt0 which has rotatably mounted thereon the roller R. The outer end of thearm Q has rigidly secured thereto an upwardly-proj ectin g arm A, whichhas swiveled therein the rotatable rod 13 having at its outer end theWheel H, by means of which the said rod is rotated. The opposite end ofthe rod is screw-threaded at S, said screwthreaded portion passingthrough a nut N, which has its lower end N pivoted to the bar F The saidbar F 3 has its outer end bifurthereby, thus changing the throw of thearm Q and also changing the amount'of oil forced into theignition-chamber by the plunger, the

one operation regulating both the time at which the charge is injectedand theamount of oil or vapor injected.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. A speed-regulator for oil-engines, comprisingan oil-plunger, meansfor forcing it down, means for changing the time of the said downwardmovement, and a movable tapered bar carried thereby and resting on saidplunger, substantially as described.

2. A speed-regulator for oil-engines comprising an oil-plunger, meansfor forcing it down, means for changing the time of said downwardmovement, a tapered bar resting upon the upper end of the oil-plunger,and means connecting the said bar and the means for changing thedownward movement, substantially as'described.

3. A speed-regulator for oil-engines comprising a revoluble shaft, a camcarried by said shaft, an arm held in engagement with the said cam, anoil-plunger, means carried by the arm for forcing the plunger downward,and means for changing the time and'distance of said downward movement,substantially as described.

4. A speed-regulator for oil-engines com.- prising a revoluble shaft, acam carried thereby, an arm pivoted at one end beneath said cam, aroller carried by said arm and held in engagement with said cam, anoil-plunger, means carried by the plunger for forcing it downward, andmeans for changing the time and distance of said downward movement,substantially as described.

5. A speed-regulator for oil-engines comprising a revoluble shaft, acam-carried thereby, an arm held in engagement with said cam, anoil-plunger, a tapered bar carried thereby, means carried by the arm forengaging said tapered bar and forcing'it downward, and means forchanging the time of said downward movement, substantially as described.

6. A speed-regulator for oil-engines comprising a revoluble shaft, a camcarried thereby, an arm held in engagement with said cam, anoil-plunger, a tapered bar carried thereby, means carried by the arm forengaging said tapered bar and forcing it downward, means for changingthe time of said downward movement, and means operated by said means formoving said tapered bar horizontally on said oil-plunger, substantiallyas described.

7. A speed-regulator for oil-engines, comprising a revoluble shaft, acam carried thereby, an arm held in engagement with said cam, anoil-plunger, a tapered bar carried'by the upper end of said plunger andin engagement with the outer end of said arm and means for moving thecam on said shaft, substantially as described.

8. A speed-regulator for oil-engines comprising ayevoluble shaft, a camcarried thereby, an arm held'in engagement with saidv cam, anoil-plunger, a tapered bar carried by the upper end of said plunger andin engagement with the said arm, means for moving said cam on the shaft,and means operated by the said means for moving the tapered bar on theplunger, substantially as described; 9. A speed-regulator foroil-engines comprising a revoluble shaft, a cam carried thereby, an armheld in engagement with said cam, an oil-plunger beneath said arm, apivoted lever for moving said cam on the shaft, and a tapered barpivoted to said lever and resting upon the oil-plunger, adjacent thearm, substantially as described. I

10. A speed-regulator for oil-engines com.- prisingarevoluble shaft,acamloosely mounted thereon, an arm held in engagement with said cam, anoil-plunger beneath said arm, a lever for rocking said cam, and atapered bar pivoted to said lever and resting upon the upper end of saidoil-plunger, substantially as described.

11. A speed-regulator for oil-engines comprising a revoluble shaft,a camloosely mounted thereon, an arm held in engagement with said cam, anoil-plunger below said arm, a

too

sleeve longitudinally movable on said shaft,

means for moving said sleeve, and means carried by the sleeve foroscillating the cam su stantially as described.

2. A speed-regulatorfor oil-engines comprising a revoluble shaft, a camloosely mounted thereon, a pivoted arm held in engagement with said cam,an oil-plunger below said arm, a sleeve longitudinally movable on thesaid shaft, and a tapered bar pivoted to said sleeve and resting uponthe upper end of said oilplunger, substantially as described.

13. A speed-regulator for oil-engines comprisinga revoluble shaft,a camloosely mounted thereon, a pivoted arm held in engage-' loosely mountedthereon and having an obliqueopening therein, a cam carried by saidsleeve, an arm held in engagement wlth said cam, an'oil-plunger in thepath of said arm,

a rod within said hollow shaft, a pin carried by the rod and enteringsaid oblique opening, and means for moving said rod within the shaft,substantially as described.

15. A speed-regulator for oil-engines comprising a revoluble hollowshaft having a longitudinal opening therein, a sleeve loosely mountedthereon and having an oblique opening therein, a cam carried by saidsleeve, an arm held in engagement with said cam, a rod longitudinallymovable within said shaft, a pin carried by the rod and passing throughthe opening in the shaft and the oblique opening in the sleeve, meansfor moving said rod within the shaft, and pivoted means forregulatingthe movement of said sleeve, substantially as described.

16. A speed-regulator for oil-engines comprising a revoluble hollowshaft having a longitudinal opening in one side, a sleeve looselymounted upon the said shaft, a cam carried by said sleeve, a pivoted armheld in engagement with said arm, an oil-plunger below said arm, a rodlongitudinally movable within said shaft, a pin carried by said rod andpassing through the openings in the shaft, and sleeve, means for movingthe rod within the shaft, and a tapered bar pivoted to said means andresting upon the upper end of the oil-plunger, substantially asdescribed.

17. A speed-regulator for oil-engines comprising a revoluble hollowshaft having a longitudinally-arranged opening in one side, a sleeveloosely mounted upon the shaft and having an oblique opening, a camcarrried by the sleeve, a pivoted arm held in engagement withsaid cam,an oil-plunger below said arm, a rod within said hollow shaft, a pincarried by said rod and extending through the openings in the shaft andsleeve the said shaft having a second opening, a pin carried by the rodand projecting through said opening, a sleeve surrounding the shaft andhaving an annular recess adapted to receive the said pin and to travelthereon, means for holding said sleeve against rotation, means formoving said sleeve longitudinally on said shaft, and a tapering barpivoted to the said sleeve and resting upon the oil-plunger,substantially as described.

18. A speed-regulator for oil-engines comprising an oil-plunger,meansfor changing the downward movement of said plunger, and a tapered barcarried by the means for changing the downward movement of the plungerand resting upon the oil-plunger, substantially as described.

19. A speed-regulator for oil-engines comprising a revoluble hollowshaft having a longitudinally-arranged opening in one side, a sleeveloosely mounted upon the shaft and having an oblique opening, a camcarried by the sleeve, an arm held in engagement with said cam, anoil-plunger below said arm, a rod within said hollow shaft, a pincarried by said rod and extending through the opening in the shaft andsleeve, the said shaft having a second opening, a pin carried by the rodand projecting through said opening, a sleeve surrounding the shaft andhaving an annular recess adapted to receive the said pin and to travelthereon, a tapering bar pivoted to the said sleeve and resting upon theoil-plunger, and means for moving said sleeve longitudinally upon saidrod, substantially as described.

20. A speed-regulator for oil-engines, comprising an oil-plunger, meansfor forcing it down, means for changing the time of said downwardmovement, and a movable tapered bar between the plunger and said meansoperated by said time-changing means forchanging the distance of saiddownward movement, substantially as described.

21. A speed-regulator for oil-engines comprising a revoluble shaft, acam carried by said shaft, an arm held in engagement with the said cam,an oil-plunger, means carried by the arm for forcing the plungerdownward, means for changing the time of said downward movement, andmeans operated by the time-changing means for changing the distance ofsaid downward movement of the oilplunger,substantially as described.

22. A speed-regulator for oil-engines comprising a revoluble shaft, acam carried thereby, an arm pivoted at one end beneath said cam, aroller carried by said arm and held in engagement with said cam, anoilplunger, means carried by the plunger for forcing it downward, meansfor changing the time of said downward movement, and means carried bythe time-changing means for changing the distance of said downwardmovement of the oil-plunger, substantially as described.

23. A speed-regulator for oil-engines, comprising a revoluble hollowshaft having a longitudinally-arranged opening in one side, a sleeveloosely mounted upon the shaft and having an oblique opening, a camcarried by the sleeve, a pivoted arm held in engagement with said cam,an oil-plunger below said cam, a rod within said hollow shaft, a pincarried by said rod and extending into the opening in the shaft andsleeve, the said shaft having a second longitudinal opening, a pincarried by the said rod and projecting through said openings, a sleevesurrounding the shaft and having an annular recess adapted to receivethe outer end of said pin, means for holding said sleeve againstrotation, means for moving said sleeve longitudinally on said shaft,said sleeve having a circumferential groove, a lever having its lowerend pivoted and its upper end resting in said groove and a taper-- ingbar carried by said lever and resting upon said plunger, substantiallyas described.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

WILLIAM A. WIIITING. W'itnesses:

CHARLES E. ALLEN, GILBERT A. Dow.

IIO

